Designation:C952−12StandardTestMethodforBondStrengthofMortartoMasonryUnits1ThisstandardisissuedunderthefixeddesignationC952;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thistestmethodprovidestwoproceduresformeasuringbondstrengthofmortartomasonryunits:acrossedbrickcouplettensiletestforevaluatingmortar-brickbondstrengthandastacked-bond,flexuraltestforevaluatingmortar-concreteblockbondstrength.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C67TestMethodsforSamplingandTestingBrickandStructuralClayTileC90SpecificationforLoadbearingConcreteMasonryUnitsC129SpecificationforNonloadbearingConcreteMasonryUnitsC140TestMethodsforSamplingandTestingConcreteMasonryUnitsandRelatedUnitsC270SpecificationforMortarforUnitMasonryC780TestMethodforPreconstructionandConstructionEvaluationofMortarsforPlainandReinforcedUnitMasonryC1072TestMethodsforMeasurementofMasonryFlexuralBondStrengthC1437TestMethodforFlowofHydraulicCementMortarE518TestMethodsforFlexuralBondStrengthofMasonry3.SignificanceandUse3.1Theseproceduresareusefulforresearchintobondstrengthofmasonry.Theyarenotintendedtopredictthebondstrengthofcommercialmasonryconstruction.Thebondstrengthincommerciallybuiltstructuresisdeterminedbymanyfactorsbeyondthecharacteristicsofmortar,masonryunits,andtheproceduresofthistestmethod.NOTE1—Thecrossed-...
